CN101648092A - Dehydration processing method for cyanophyte water - Google Patents
Dehydration processing method for cyanophyte water Download PDFInfo
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- CN101648092A CN101648092A CN200910144720A CN200910144720A CN101648092A CN 101648092 A CN101648092 A CN 101648092A CN 200910144720 A CN200910144720 A CN 200910144720A CN 200910144720 A CN200910144720 A CN 200910144720A CN 101648092 A CN101648092 A CN 101648092A
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Abstract
The invention relates to a dehydration processing method for cyanophyte water, which is characterized by comprising the following steps: respectively pumping the cyanophyte water and a flocculating agent into a first press filter, mixing and carrying out first press filtration in the first press filter; preparing cyanophyte after first press filtration into algal biscuit; leading the filtering water and the back washing discharge water of the first press filter to enter a second press filter to carry out second press filtration; preparing the cyanophyte after second press filtration into algalbiscuit; using one part of the filtering water of second press filtration as the back washing water of the first press filter and discharging the residual filtering water of the second press filtration into a water body. The second press filtration is carried on the filtering water of the first press filtration and the back washing discharge water of the first press filter, filtering water of thesecond press filtration is used as the back washing water of the first press filter, the filtering water subjected to second press filtration hardly contains cyanophyte and can not generate secondarypollution on the water body by direct discharge; and one part of the filtering water subjected to second press filtration is used as the back washing water of the first press filtration, can not block a filter screen of the first press filter and can ensure the enduring normal working of the first press filter.
Description
Technical field
The present invention relates to the improvement that blue-green algae pollutes, especially relate to a kind of dehydration processing method for cyanophyte water.
Background technology
Along with rapid development of economy, human also serious day by day for the pollution of water resource.In recent years because the eutrophication of water in the lake, blue-green algae large tracts of land will occur and break out (being commonly called as wawter bloom) during hot weather annual spring and summer.The processing that breaks out for blue-green algae is at present salvaged dense algae water by dragging for algae operation ship and manual type usually, stacks in the blue-green algae pond, and this processing mode need take a large amount of places, also can pollute terrestrial environment simultaneously.The patent No. is disclosed a kind of method of making algal biscuit after will the blue algae water dehydration in the file of ZL200710025698.2 (blue algae volume reduction technique), in order to solve the problem that blue algae water takies a large amount of stackings place, this patent mainly is to add flocculant to mix in blue algae water, again through making algal biscuit after the filter press dehydration.Utilize said method to handle blue algae water, blue algae water is directly discharging the backwater body through the filtrate behind the filter press, and it is more to contain algae in the filtrate after a filter press dehydration, and so direct discharging can produce secondary pollution to water body again; In addition in the use of filter press; need wash away with the filter screen of backwashing water filter press; in order to avoid blue-green algae is stopped up the mesh of filter screen; these are through containing more blue-green algae equally in the backwash water outlet that filter screen is washed away; directly drain into water body and can produce secondary pollution to water body equally; and generally; backwashing water directly extracts in the operating location water body; because it is more to contain algae in the operating location water body; more easily stop up filter screen on the contrary, cause the filter press can't operate as normal and need to shut down towards Xian.
Summary of the invention
The applicant has carried out research and has improved at above-mentioned problem, and a kind of dehydration processing method for cyanophyte water is provided, and makes the discharging of filtrate can not produce secondary pollution to water body.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of dehydration processing method for cyanophyte water pumps into blue algae water and flocculant respectively in filter press, and mixes in a filter press and carry out a press filtration; Blue-green algae after the press filtration is made algal biscuit, the filtrate of a filter press and backwash water outlet enter the secondary filter press and carry out the secondary press filtration, blue-green algae after the secondary press filtration is made algal biscuit, the part of the filtrate of secondary press filtration is as the backwashing water of a filter press, and the filtrate of remaining secondary press filtration is discharged in the water body.
Further:
A described filter press is the press filtration unit that is made of many belt filter presses.
Described secondary filter press is a plate and frame type filter-press.
Technique effect of the present invention is:
A kind of dehydration processing method for cyanophyte water disclosed by the invention; the filtrate of a press filtration and the backwash water outlet of a filter press are carried out the secondary press filtration; and with the filtrate of secondary press filtration backwashing water as a filter press; contain blue-green algae hardly through the filtrate after the secondary press filtration; directly discharging can not produce secondary pollution to water body; and the part of the filtrate after the secondary press filtration is as the backwashing water of a press filtration; can not stop up the filter screen of a filter press, can guarantee a lasting operate as normal of filter press and do not shut down.
Description of drawings
Fig. 1 is a flow chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Method of the present invention: after the blue algae water in the water body is salvaged collection, blue algae water and flocculant are pumped into respectively in filter press, and in filter press, mix and carry out a press filtration, blue-green algae after the filter press press filtration is made algal biscuit, still contain more blue-green algae in the filtrate of a press filtration, contain more blue-green algae equally in the backwash water outlet of backwashing water to a filter press flushing, the filtrate of a press filtration and backwash water outlet enter the secondary filter press, by the secondary filter press it is carried out the secondary press filtration, blue-green algae after the press filtration of secondary filter press is made algal biscuit, filtrate after the secondary press filtration contains algae part hardly, the part of the filtrate of secondary press filtration is as the backwash water of a filter press, the filtrate of remaining secondary press filtration directly is discharged in the water body, can not cause secondary pollution to water body.
In the present embodiment, with the landing stage as workbench, arrange that above deck the press filtration unit that is made of many belt filter presses (is made up of 10 belt filter presses, model DZ-LZ500-III, Jiangsu Ding Ze Environmental Engineering Co makes), Fu Gesen pump, 5 algae-sucking pumps, chemicals dosing plant (JY4000L), plate and frame type filter-press (model XY80800U, middle ship heavy industry the 702nd research institute makes) and control corresponding chamber and lobby or the like, cabin mainly is made up of several continuous algae water tanks, and above-mentioned capital equipment interconnects by pipeline.The press filtration unit that is made of belt filter press is as a filter press, and plate and frame type filter-press is as the secondary filter press.
As shown in Figure 1, use the Fu Gesen pump that the fresh blue algae water of free from admixture on blue-green algae pick-up boat or the artificial pick-up boat is pumped in the algae water tank, by 5 algae-sucking pumps the blue algae water in the algae water tank is pumped in filter press, simultaneously, the pre-configured by a certain percentage flocculant of chemicals dosing plant is input in filter press by built-in measuring pump, evenly mixes with blue algae water.Press filtration by a filter press, blue algae water is divided into two parts output: algal biscuit and filtrate, the algae water volume ratio of the filtrate of this moment is about 8%～20%, the blue algae water concentration of a filter press of input is high more, it is high more that filtrate contains concentration of algae, and directly drain into water body and can cause secondary pollution this moment.A certain amount of blue-green algae is adhered in the backwash water outlet of using during filter screen regeneration in filter press, and its filtrate with a press filtration flows in the secondary filter press (plate and frame type filter-press) and carries out the secondary press filtration.Press filtration by the secondary filter press, divide two parts output after the secondary press filtration: algal biscuit and secondary filtrate wherein contain algae part in the secondary filtrate, hardly near clear water, its part recycles as the backwashing water of a filter press, and remainder directly is discharged in the water body.
Method of the present invention is implemented in the landing stage, jumbo algae water tank can be set on the landing stage, many filter presses and secondary filter press can be settled in the large tracts of land deck on landing stage, the landing stage is a nonself propelled ship, can reduce cost greatly, have certain mobility simultaneously, but towage is worked near the fishing water surface, increase operating efficiency, reduced operating cost.
Claims (3)
1. dehydration processing method for cyanophyte water is characterized in that: blue algae water and flocculant are pumped into respectively in filter press, and mix in a filter press and carry out a press filtration; Blue-green algae after the press filtration is made algal biscuit, the filtrate of a filter press and backwash water outlet enter the secondary filter press and carry out the secondary press filtration, blue-green algae after the secondary press filtration is made algal biscuit, the part of the filtrate of secondary press filtration is as the backwashing water of a filter press, and the filtrate of remaining secondary press filtration is discharged in the water body.
2. according to the described dehydration processing method for cyanophyte water of claim 1, it is characterized in that: a described filter press is the press filtration unit that is made of many belt filter presses.
3. according to the described dehydration processing method for cyanophyte water of claim 1, it is characterized in that: described secondary filter press is a plate and frame type filter-press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101447204A CN101648092B (en) | 2009-08-25 | 2009-08-25 | Dehydration processing method for cyanophyte water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101447204A CN101648092B (en) | 2009-08-25 | 2009-08-25 | Dehydration processing method for cyanophyte water |
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| Publication Number | Publication Date |
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| CN101648092A true CN101648092A (en) | 2010-02-17 |
| CN101648092B CN101648092B (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101447204A Expired - Fee Related CN101648092B (en) | 2009-08-25 | 2009-08-25 | Dehydration processing method for cyanophyte water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698498A (en) * | 2012-05-28 | 2012-10-03 | 自贡鸿鹤化工股份有限公司 | Solid-liquid separation method for salted mixed liquid in production of polyphenylene sulfide |
| CN102895811A (en) * | 2012-10-26 | 2013-01-30 | 天津太平洋机电技术及设备有限公司 | Water-backwashing, zero-emission, environment-friendly and plate frame-reversible diatomite filtering machine |
| CN108479133A (en) * | 2018-05-22 | 2018-09-04 | 上海虹民建设工程有限公司 | A kind of vehicle-mounted removable water and soil separation equipment |
| US11124751B2 (en) | 2011-04-27 | 2021-09-21 | Pond Technologies Inc. | Supplying treated exhaust gases for effecting growth of phototrophic biomass |
| US11512278B2 (en) | 2010-05-20 | 2022-11-29 | Pond Technologies Inc. | Biomass production |
| US11612118B2 (en) | 2010-05-20 | 2023-03-28 | Pond Technologies Inc. | Biomass production |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8940520B2 (en) | 2010-05-20 | 2015-01-27 | Pond Biofuels Inc. | Process for growing biomass by modulating inputs to reaction zone based on changes to exhaust supply |
| US8969067B2 (en) | 2010-05-20 | 2015-03-03 | Pond Biofuels Inc. | Process for growing biomass by modulating supply of gas to reaction zone |
| US8889400B2 (en) | 2010-05-20 | 2014-11-18 | Pond Biofuels Inc. | Diluting exhaust gas being supplied to bioreactor |
| US9534261B2 (en) | 2012-10-24 | 2017-01-03 | Pond Biofuels Inc. | Recovering off-gas from photobioreactor |
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2009
- 2009-08-25 CN CN2009101447204A patent/CN101648092B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11512278B2 (en) | 2010-05-20 | 2022-11-29 | Pond Technologies Inc. | Biomass production |
| US11612118B2 (en) | 2010-05-20 | 2023-03-28 | Pond Technologies Inc. | Biomass production |
| US11124751B2 (en) | 2011-04-27 | 2021-09-21 | Pond Technologies Inc. | Supplying treated exhaust gases for effecting growth of phototrophic biomass |
| CN102698498A (en) * | 2012-05-28 | 2012-10-03 | 自贡鸿鹤化工股份有限公司 | Solid-liquid separation method for salted mixed liquid in production of polyphenylene sulfide |
| CN102895811A (en) * | 2012-10-26 | 2013-01-30 | 天津太平洋机电技术及设备有限公司 | Water-backwashing, zero-emission, environment-friendly and plate frame-reversible diatomite filtering machine |
| CN108479133A (en) * | 2018-05-22 | 2018-09-04 | 上海虹民建设工程有限公司 | A kind of vehicle-mounted removable water and soil separation equipment |
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| Publication number | Publication date |
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| CN101648092B (en) | 2011-06-01 |
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Assignee: Wuxi Dongfang ship water environment Technology Co., Ltd. Assignor: The 702th Research Institute of China Shipbuilding Industry Corporation Contract record no.: 2012320000743 Denomination of invention: Dehydration processing method for cyanophyte water Granted publication date: 20110601 License type: Exclusive License Open date: 20100217 Record date: 20120608 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20200825 |